ZF 4143.216.029 BEVEL GEAR SET for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 4143.216.029 BEVEL GEAR SET is a critical power transfer component engineered for the WG100, WG130, and WG131 series transmissions. This OEM genuine part, identified by SKU 4143.216.029, sits at the interface between the input shaft and the countershaft, converting rotational force at a precise angle to drive the transmission’s main gear train. In the HL 100 Series and HL 270 Series assemblies, this bevel gear set ensures smooth torque distribution and minimal backlash, directly influencing driveline efficiency and noise levels. When paired with a robust 4143101009: HOUSING or the 4143301025: HOUSING, the gear set maintains its axial alignment under heavy loads, preventing premature edge wear.

Symptoms of Failure

• Whining or howling noise during acceleration: A distinct high-pitched sound from the transmission case often indicates worn gear teeth or improper mesh of the bevel gear set, a common search query for “ZF transmission whining noise fix.”
• Vibration in neutral or drive: Excessive play in the gear set causes harmonic vibrations felt through the chassis, particularly at highway speeds, matching searches for “bevel gear vibration symptoms.”
• Metal particles in transmission fluid: Flaking or pitting on the gear surfaces sheds metallic debris into the oil, which can be detected during routine fluid changes, a key indicator for “gear set failure debris.”
• Intermittent gear slipping under load: As the bevel gear set loses its tooth profile integrity, the transmission may momentarily lose torque transfer when climbing grades or towing, aligning with “ZF gear slipping causes.”

Technical Specifications

Compatibility

This bevel gear set is directly compatible with the following ZF transmission models: WG100, WG130, WG131, WG180, and WG200 series. It also fits select variants of the HL 100 and HL 270 series where the gear ratio matches the original factory specification. For proper installation, always replace the 0634313603: O-RING on the input housing and verify the 4475280018: SCREW PLUG torque to prevent fluid bypass. The gear set is not backward-compatible with pre-1998 WG models without a corresponding housing update.

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